الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
The thesis consists of 228 pages divided into six chapters, references, an English summary, 57 Figures, 64 Tables and an Arabic summary.
Chapter one: Introduction: Deals with the importance of fish fries in natural habitat and as seeds for finfish culture and its relation to Zooplankton in marine habitat as it refers briefly to the studies made about similar researches in Mediterranean sea in general and the Egyptian waters in particular.
Chapter two (materials and methods): Describes the study area and the sampling stations, methods of determination of some hydrographic parameters, identification and abundance of zooplankton. This part includes also the describing of different ways of analysis of fish gut content. Also, the apply of statistical analysis to discuss different results has been described in details.
Chapter three (physico-chemical characteristics): Describes the water quality parameters of Damietta coast especially those affect the distribution and abundance of zooplankton and fish fries as temperature, salinity, transparency, pH, Do, nutrients and phytoplankton biomass. In this chapter we found that salinity, phytoplankton biomass, and nitrogenous nutrients were the most important parameters.
Chapter four (Zooplankton community): Describes the structure, diversity, and abundance of the total zooplankton and the most important groups with the mention of the dominant species . Also, in this chapter we found in details the statistical relations between the different parameters of zooplankton community (standing crop, dominant groups and dominant species) and the physico-chemical parameters.
Chapter five (food and feeding habits of fish larvae): Describes the distribution and abundance of the larvae of five commercial fishes for one year in relation to the prevailing environmental conditions. The main object of this part was to find the most preferable food item for fish larvae. Copepods, especially the calanoids species were the most selected by fish fries.
Chapter sex (Copepod culture ): Three experiments were done to evaluate the effects of various dietary microalgae (4 different types ) on survival, maturation, sex ratio, total nauplii production and nutritional components of the copepod Gladioferens imparipes. At the end of these experiments we found that this copepod species has a potential for mass culture and can be use as a highly nutritious food (rich in Omega3 fatty acids) in larviculuter.